145644437575 has 24 divisors (see below), whose sum is σ = 222275822048. Its totient is φ = 92188126080.

The previous prime is 145644437557. The next prime is 145644437639. The reversal of 145644437575 is 575734446541.

It is not a de Polignac number, because 145644437575 - 2¹⁷ = 145644306503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32007492 + ... + 32012041.

Almost surely, 2^145644437575 is an apocalyptic number.

145644437575 is a deficient number, since it is larger than the sum of its proper divisors (76631384473).

145644437575 is a wasteful number, since it uses less digits than its factorization.

145644437575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64019563 (or 64019558 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 55.

The spelling of 145644437575 in words is "one hundred forty-five billion, six hundred forty-four million, four hundred thirty-seven thousand, five hundred seventy-five".